The workers and technicians worked hard _____ to get the Great Hall finished before National Day.
| A．like a crazy | B．as a crazy |
| C．like crazy | D．as crazy |
Some plants are so difficult to grow that they can only ______ in a perfectly clean environment.
| A．communicate | B．exchange |
| C．survive | D．afford |
The family finally climbed to the top of the Mount Tai, ________.
| A．exhausting | B．amusing |
| C．exhausted | D．fascinating |
Only after he was taken to the teachers’ office did he admit ______ the window.
| A．break | B．breaking |
| C．broken | D．to break |
Her poetry is always easy and __________.
| A．frequent | B．accessible |
| C．partial | D．manual |
--Do you know that Carlos has been made head of the sales department?
--Yes. His honesty and hard-work ______the boss very much.
| A．impressed | B．disappointed |
| C．noticed | D．shook |